Hello People, new to the forum here and have read loads of good stuff so far, am at THAT stage where I am at #9 on my auto lens shade for mig work and still find things fuzzy, so just bought a 2.25 cheater lens as it's a real PITA trying to weld wearing vari focals, just wondered if anyone new how the lens is fitted in a speedglas shield....?

would it be better in front of the lens behind the clear lens protector or at the back of the lens inside the shield...? also how are they held in place, cheers all..